Anyone not understanding what the three lines are, and how to apply them, has not the knowledge required to fully appreciate what you've done: Beauty from simplicity.
@population = 55 # agents
@setVision 4 # patches & set patch rect
@minSeparation = 3 # patches
Do save your model as a new one if you want, makes it a one-click experience for visitors.
(in an ideal scenario AgentBase would do this automatically, and for each edit provide a link to that version... gists don't fork, sadly)